Good morning everyone,
Welcome To our class.
Environmental protection from all
started
——谢建蓉，邓婷婷，刘嘉
石霜，何琴。
学号 ：03,06,09,13,19,25
Environmental Protection
Environment
is the things around the center of things
Rainforest is the lung of the earth
This is the distribution
of the rainforest
onEarth
There are three main reinforest on
Earth:one is in Africa, another
one is in South-eastern Asion
and the last one is in South
America.
The law of
Environmental Protection
Environment is :
air, water, land, minerals, forests
grasslands, wildlife (野生动植物)
aquatic flora and fauna(水生动植物)
historical sites, scenic areas
nature reserves, residential areas
Some kinds of the
species
What is happening
on the earth every second
● 2.4
Neonates born in the world.
● extracted 28.6 tons of metal.
● produce 1.3 cars.
● CO2 emissions of 760 tons worldwide.
● Decrease of 0.6 square kilometers forest.
The world's
top ten environmental problems
◆ 1.Global warming---全球变暖
◆ 2.Ozone layer depletion---臭氧层破坏
◆ 3.Loss of biodiversity---生物多样性减少
◆ 4.The spread of acid rain---酸雨蔓延
◆ 5.Forest dropped---森林锐减
◆ 6.Desertification---土地荒漠化
◆ 7.Air pollution---大气污染
◆ 8.Water pollution---水体污染
◆ 9.Marine pollution---海洋污染
◆ 10.Cross-boundary movements of
poisonous wastes---毒性废弃物越境转移
NO.1
Global warming
◆Gradually increasing the greenhouse effect, Earth's
temperature rising.
◆ Main hazards(危害):
abnormal weather, species extinction, the sea level rising.
NO.2
Ozone layer depletion
◆ Ozone (O3) layer: the Earth's protective layer
◆ Main hazards:
strong UV (ultra-violet ray紫外线) radiation can
damage immune system（免疫系统） of human natures
and animals , cause skin cancer and cataracts（白内障）
, damage to the earth’s ecosystems（全球生态系统）.
从全国总体情况看，废水排放量增长速度极快。城市生活污水总量也不断增加，
783亿吨。由于废水处理事低（估计仅为20%～30%），大部分废水未经处理直接
体，严重污染了水资源。我国七大水系中近一半河段污染严重，86%的城市河段水质
国被污染水系，比较严重的是淮河、海河、松花江、辽河、长江中下游以及珠江三角
The present situation of
发达地区。河流的城市段污染明显，小河重于大河，北方重于南方。1990年，在被
water pollution
流城市段中，65个受到不同程度的污染，占69.1%，污染物主要以氨氮、挥发酚和
主。据调查，全国有7亿人饮用大肠杆菌超标水，1.64亿人饮用有机污染严重的水，
酸盐超标水。
From the general situation look, wastewater emissions growth very fast. City life to
also increasing, about 2000 to 78.3 billion tons. Due to the low wastewater treatm
(estimates only 20% ~ 30%), most of the waste water treatment without directly
the water, causing serious pollution of water resources. Seven of the great river in
river pollution is serious, 86% of urban river water quality common to exceed bid.
water system, more serious is the huai river, hai river, the songhua river, liao river,
river and the pearl river delta and other industrial more developed regions. The riv
pollution obvious, on the river to the river, and the north on the south. In 1990, in
evaluation river city paragraph, 65 by different levels of pollution, accounting for 69
pollutants in ammonia nitrogen and oxygen consumption of volatile phenol and org
give priority to. According to the survey, the 700 million people who drink escherich
overweight water, 164 million people who drink organic pollution of the water, and
people drinking water nitrate exceeds bid.
水污染的现状
NO.3
Loss of biodiversity
◆ Global extinction of 50,000 species / year,
140 / day on average.
NO.4
The spread of acid rain
◆ pH <5.6 referred as acid rain.
◆ Main hazards:
Water and soil acidification(酸化), plant and animal
death, corrosion(腐蚀) buildings, railways and bridges
and other facilities.
Air pollution
air pollution
NO.5
Forest dropped
◆ Huge numbers of global deforestation.
NO.6 Desertification
◆ 600 million square kilometers of land into desert each
year.
NO.7
Air pollution
◆ Sulfide and nitrogen oxides(硫化物和氮氧化合物) into the
atmosphere worldwide up to 30 million tons each year.
Poverty
Developed
countries’
request of
valuable timber
NO.8 Water pollution
◆ About 40% of the world’s rivers are seriously polluted.
◆ Freshwater（淡水）resources are becoming exhausted.
NO.9 Marine pollution
◆ Hundreds of tons of silt and waste(淤泥和废弃物)
into the coastal waters annually.
NO.10 Cross-boundary movements of
poisonous wastes
◆ Toxic waste-induced cancers.
Water pollutant
water pollution
环境的污染
触目惊心
• The land we have
owned once we
depeneded to raised
our life now have
become more and
more infertility ,the
desert is gradually
expanding oneday
when we have no
land to live what
we should do?
• Yes, we only have one earth ,so all of us take the
action to rescued the world ,once the maya said
that the 2012 is the end of our world ,while I
believe that we can conquered every
diffculties ,we can face the challenges,Just do it
from now on ,from ourselves,from every little
action!
• It seems that there
are fewer birds we
can see now ,we
should have mercy
on the nature,all
the creatures
should be get
along well with
each other>
• A jiornalist have once said
that we should not let the
last water we see
Becoming our tear.so from
now on we should take
actions to save every drop
of water,take off the tap
when you are not to use!
• Now our country is still
mostly based on the fire
electricity so large amount of
coal is used for make the
power,so your just a little
action can make a
difference!
• Have the consciousness in
every part of our daily life!
• If we use little power ,then
less carbon dioxide can put
into the air,so there will be
less risks that the countries
in the world can be flooded
by the water!
• Have mercy on the human
just as us !
the beauty of our natural
scenery
the beautiful sky
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The
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